Vibrator device



Feb- 2, 1954 s. sTEux-:RMAN

VIBRATOR DEVICE Filed June 25, 1952 C M n/w Z (d Patented Feb. 2, 1954YUNITED STATE S PATENT OFFICE J2,667,749 'viisitAToR Ef'IC SergeySteuerman, New York, N. Y; Applittidn June z5, 1952, ,'seri'al516.29552@ (Cl. "GIL-'365 6 Claims.

Thq :present invention relates to vibrator'devices jand 'moreparticularly to a Vvibrator device with streamlined 'body for insertioninto loose l sai-idysoil 'or'like mass forcompacting 'the same.

j tisfan object of the present invention to pro'- yiie meansfacilitating corniciaction of loose 'nias'ses'of theaforesai'd type in avery economical,

`eicient and guickmanner.

fvi'le means 'ensuring `reduced 'cost :for mainteance, "and permittinglready assembly and in- `creased"'sturdiness of ktrie 'parts of whichthe vibrtondevceconsist's t Heretoore, vibrators iiei'eeonstructed witha streamlined s lrell containing eccentric means for impartingvibrations to 'the outside of the sheii transfer "to the .surroundingsandyjmass Ato aotjjsainen. .A vibrator of this kindisdiscbarser'sadorlike massi I Wlien duringsand compaction the 'vibratoris retracted V step b'vjstep( the "sand 'layer 'previously permeatedwith Water orlikeliquid orsuspension 'must undergo a preeompactionstepWiiereby'excess vWater` or liquid is to be 'squeezed out and drained o'.escapeof such excess liqui d hoite-verencounters greatidiiculties, whichlead 'to aoonsideraplejloss-of 'time andfeconorny in pferforining thecompaction process, when used for sltyjsand. 'I he 'presenth'inventionovercomes these and other disadvantaesjand provides means facilitat-:iiiig'easyjrenioval-of excess liquid during' compaction ofthe permated. sandy mass.

The known, vilorators generallir foorn'pact the 's'a-ndjaround theentireoutside civ their shells.v To 'this end, tl'gvibrator to' be withdrawnis retracted through 'compacted sand layers or areas, lwhich show greatresistance to anyinovement of "water or like liquid when the treatedmaterial is Silty sand. Accordingto the invention the vibratorjapparatiis is so 'modied.and improved tliaftit permits ready movementof'sueh water along the uppershell Dai-t ofthe apparatus, Theinherentvibrations ofthe vibratorA apparatus will cause loosening upof'internalstruetural 'connections under tension after 'a certain timeyof use'. vThis 'nia-lees it necessary to vvdis''assemble the apparatusentirely in Creelto) tightens; repair these 4ecime stione. fllie presentinvention materially improves the 'assembly of these vooit-- "nections:v

stenta appara-tus for comij'aetirig'a loose inass'coinriiisesoonnectnsineans connecting said Sli'ell patstogether, Asaid connectingnieams irieliilin'g ad pllirality of fins or lugseaoh having aiirstfporti'on and aseconci portion, one or said portions being mountedoutside the upioer shell part 'and vvvprojecting therefrom, theotliferof 'said portions being mounted outside theglower shellpart'andbrojecting therefrom, and fastening "means for l"at-- tackling said'lug portions together.

According 'to `the present "invention, "one 'grob portions of said msVis provided with 4a" projection 'fitting into 'said lug's depressions,whereby fthe 'lugs yin""assembld Condition lWill 'be 'securely Lregistered and interloeked together.

The 'invention f nrther -coni'enlplatfes the'p'o'sition of"afinotorfvthin VVthe "assembled shell "and jds'posed in-proiciiiiity ofone Iof the poti'o'ns'of lt1ie ii1is.

Since tlie'isf are on'l theoutside, the connection means which attachtriefsnell parts togtiier :are easily accessible and. i'iayreadilybetighten'ed.

The above and otlieilobjeets V`and 'features will seription;v referencebeing Triad t'oy the" accompany'- irierdrawing- 'ihrtdpintofsoi1,'withparts being broken may fcentrieweghtm 'seing connected to motor laconnections 25. The electric current to the motor is supplied through acable I9, whereas liquid or uid is supplied through the vibrator devicefrom conduit means 20 to a manifold connected to pipes 20a, 2017 fordischarge of liquid at the forward or advancing end 22 of the vibratordevice I0. Further liquid is supplied through conduit means 2I to theupper vibrator part Mib for discharge at nozzles 2m and slots 2lb.

As can be more clearly seen in Fig. 4, each ange or lug connection 25consists of a, lug part 25a fixed exteriorly of and to the lower shellpart Ia whereas an upper lug part 25h is fixed or otherwise connected tothe upper shell part I8b. Each lug part 25a has a recess or depression23 into which ts the projecting lug extension 24 of the upper lug part25h. Suitable watertight gaskets may be arranged to attain improvedconnections.

The ange or lug parts 25a and 25h are provided with bores or passageways25 which are in registry with each other to thereby facilitate insertionof screw bolts 21 for tightly connecting shell part I8a to shell partI8b. It is preferred to have the outwardly projecting flange connections25 equally distributed over the circular shaped outer surface of theshell I 8, as more clearly seen in Fig. 2. Y

It will 'be further noted that the lug connec- 'tions 25 are tapered tofacilitate cutting of channels in the sand layers. To this end the lowerlug part 25a extends obliquely in upward direction toward the outer end25e of the lug part 25a and similarly, the lug part 25h tapersdownwardly toward the lug end 25d as clearly apparent from Fig. 1.

The function of the vibrator device is known Vper se and the operationthereof has been more vclearly explained in the aforesaid prior U. S.

Patents Nos. 2,360,803 and 2,334,228.

When the vibrator I is being retracted from Within the funnel I I, thecompaction of the sand material I3 takes place at various degrees.First, a precompaction is achieved in zone A while the fina1 compactiontakes place approximately at the forward end of the vibrator and in zoneB. Above the lug connections 25 which form ns. there is a zone of sandC, which has been fed or supplied from the open upper end of the funnel.Above and in this zone of relatively loose sand C is disposed fluid l2,such as water, which is also supplied in a regulatable amount throughhose connection 2|, to nozzles 2Ia and openings or slots 2lb so that itseeps through the loose sand zone C, and is then subsequently brought incontact with the precompacted sand zone A through channels D cut intothe sand zones by means of the cutting iin-forming flange or lugconnections 25, as clearly indicated in Fig. 1.

Thus, a direct connection between the fluid I2 and the mass to becompacted in zones A and B is achieved through the fin-shaped ange orlug connections cutting into the sand zone C the aforesaid channels D.Consequently, a connection between the iiuid l2 and the lower sand zonesA and B is achieved whereby water or similar iiuid communicates throughsaid cut channels with the loose sand.

While the vibrator is withdrawn from the funnel in the direction ofarrow X step by step and compacted which contributes to a speedy and ILe',

highly economical compaction operation. It is further to be noted thatthe lug connections 25 contribute to an increased precompaction in thezone A since the vibrations from the eccentric weight I 4 are alsocommunicated through the shell I8 to the lug connections 25. These lugconnections further increase the strength of the vibrator device andfacilitate repairs in and disassembly of the interior of the vibratorwhen needed.

In comparison with heretofore known, streamlined vibrators, thecompaction process in accordance with the construction of the vibratorof the present invention is intensified and becomes more economical.

During the compaction of the successive sand layers which are permeatedwith a fluid or water, excess water may be squeezed out from therespective sand layers in accordance with the present invention and willthus be drained ofl. This excess or surplus water had generally noopportunity of escaping from silty sand which made the compactionprocess or operation considerably slow when used in silty sand. Thechannels D now temporarily cut into the sand layer above the actualprecompaction and compaction zones A and B not only facilitate greatlythe removal of excess or surplus fluid or water but also contribute to acertain grouping of the sand particles prior to the precompaction stepduring which the cut channels subsequently disappear when the lower partI8a of the vibrator I0 comes into action and completes the compaction.

It is well understood thatl the arrangement and the dimensions of thelug or ange connections rnust be carefully selected and it has 'beenfound that approximately six ange connections or lugs equallydistributed over the circumference of the vibrator and protrudingtherefrom to an extent of approximately one fourth of the radius of thevibrator shell, wil1 be suitable for average practical requirements.

The lug connections and the bolts employed therefor are adapted totransfer the vertical forces from the vibrator through the upper part Ibto the supporting derrick or crane (not shown) and are susceptible towithstand continuous vibrations.

The screw bolts are easily accessible and permit easy checking andtightening, if necessary.

rIt will be observed that the parts of the lug connections interengagewith each other at the recesses 23 and thus prevent any horizontalrotation of the upper shell part I8b with respect to the lower shellpart I8a. Such structure further contributes to a rigid vibratorconstruction. Residual torque forces transferred through the aforesaidbolts produce in the same smaller shear forces when they are locatedoutside the shel1 I8 on a suitably large diameter whereby the lugstransfer the torque forces from the shell tothe head of the vibrator. Y

If such lugs were made long as compared with the space between twoadjacent lugs, sand would wedge in and would stick to the vibrator. Insuch case, these lugs would produce an increase of the total diameterand weight of the vibrator device but no vertical channels could beattained in the precompacted sand layers. For the purpose of producingvertical channels the lengths of the lugs must be made shorter than thetransverse distance between two adjacent fins or lugs and the lugsshould have wedge-shaped configuration to avoid deposit of sand thereon.

Although several specic Vexnbodiments of the invention have beendescribed and shown in the drawing, it should be noted that theinvention may be realized in modied form and adaptations of thearrangements herein disclosed may be made as may readily occur topersons skilled in the art without constituting a departure from thespirit and scope of the invention as deined in the objects and in theappended claims.

Having thus described the invention, what is claimed as new and desiredto be secured by Letters Patent, is:

1. A vibrator device for treating earth and like material; comprising anupper shell part, a lower shell part, said Ishell parts when inassembled condition being adapted to house vibrating means, a pluralityof lug means arranged in spaced apart relation to each other, each lug.means comprising a portion exteriorly xed to said upper shell part anda further portion eX- teriorly iixed to said lower shell part, therespective lug portions being in registry with each other in assembledcondition of said shell parts, and connecting means extending into saidlug means, respectively, to hold the respective portions together, thelength of said lug means in assembled condition of said shell parts andthe distance between said lug means being sufficient to substantiallyobviate, between said spaced apart lug means, accumulation of materialunder treatment, said lug means being shaped to cut channels ofappreciable dimensions into said material when moving said lug meansrelative to the latter.

2. A vibrator device according to claim l, wherein said lug means aredisposed substantially along the same level and adjacent the line ofjuncture of said upper shell part and said lower shell part, the heightof each lug means being smaller than the distance between two adjacentlug means to thereby impede wedging of said material therebetween.

3. A vibrator device according to claim l, including a motor housed insaid lower shell part and forming a part of said vibrating means, saidmotor being arranged in proximity of said lug means.

4. A vibrator device according to claim 1, wherein the respectiveportions of each lug means are provided with interengageable formationsto thereby take up torsional forces when acting between sad upper andsaid lower shell parts.

5. A vibrator device according to claim 1, wherein said further portionsof said lug means are upwardly tapered and larger in width than theportions of said lug means which are downwardly tapered and lxed to saidupper shell part.

6. A vibrator device according to claim 1, wherein the lug portions ofsaid lower shell are larger in width than the lug portions of said uppershell part, said lug portions of said lower shell part being providedwith recesses in which said lug portions of said upper shell part areengaged in said assembled condition of said shell parts.

SERGEY STEUERMAN.

References Cited in the file of this patent UNITED STATES PATENTS NumberName Date 2,229,912 Baily Jan. 28, 1941 2,233,833 Jackson Mar. 4, 19412,334,228 Steuerman Nov. 16, 1943 2,360,803 Steuerman Oct. 17, 1944

